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  • 1. Abbas, Sascha
    et al.
    Linseisen, Jakob
    Rohrmann, Sabine
    Chang-Claude, Jenny
    Peeters, Petra H
    Engel, Pierre
    Brustad, Magritt
    Lund, Eiliv
    Skeie, Guri
    Olsen, Anja
    Tjønneland, Anne
    Overvad, Kim
    Boutron-Ruault, Marie-Christine
    Clavel-Chapelon, Francoise
    Fagherazzi, Guy
    Kaaks, Rudolf
    Boeing, Heiner
    Buijsse, Brian
    Adarakis, George
    Ouranos, Vassilis
    Trichopoulou, Antonia
    Masala, Giovanna
    Krogh, Vittorio
    Mattiello, Amalia
    Tumino, Rosario
    Sacerdote, Carlotta
    Buckland, Genevieve
    Suárez, Marcial Vicente Argüelles
    Sánchez, Maria-José
    Chirlaque, Maria-Dolores
    Barricarte, Aurelio
    Amiano, Pilar
    Manjer, Jonas
    Wirfält, Elisabet
    Lenner, Per
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Sund, Malin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Bueno-de-Mesquita, H B
    van Duijnhoven, Fränzel J B
    Khaw, Kay-Tee
    Wareham, Nick
    Key, Timothy J
    Fedirko, Veronika
    Romieu, Isabelle
    Gallo, Valentina
    Norat, Teresa
    Wark, Petra A
    Riboli, Elio
    Dietary intake of vitamin d and calcium and breast cancer risk in the European prospective investigation into cancer and nutrition2013Inngår i: Nutrition and Cancer, ISSN 0163-5581, E-ISSN 1532-7914, Vol. 65, nr 2, 178-187 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Studies assessing the effects of vitamin D or calcium intake on breast cancer risk have been inconclusive. Furthermore, few studies have evaluated them jointly. This study is the largest so far examining the association of dietary vitamin D and calcium intake with breast cancer risk in the European Prospective Investigation into Cancer and Nutrition. During a mean follow-up of 8.8 yr, 7760 incident invasive breast cancer cases were identified among 319,985 women. Multivariable Cox proportional hazards regression was used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for pre- and postmenopausal breast cancer risk. Comparing the highest with the lowest quintile of vitamin D intake, HR and 95% CI were 1.07 (0.87-1.32) and 1.02 (0.90-1.16) for pre- and postmenopausal women, respectively. The corresponding HR and 95% CIs for calcium intake were 0.98 (0.80-1.19) and 0.90 (0.79-1.02), respectively. For calcium intake in postmenopausal women, the test for trend was borderline statistically significant (P(trend) = 0.05). There was no significant interaction between vitamin D and calcium intake and cancer risk (P(interaction) = 0.57 and 0.22 in pre- and postmenopausal women, respectively). In this large prospective cohort, we found no evidence for an association between dietary vitamin D or calcium intake and breast cancer risk.

  • 2. Abelsson, J
    et al.
    Merup, M
    Birgegård, G
    WeisBjerrum, O
    Brinch, L
    Brune, M
    Johansson, P
    Kauppila, M
    Lenhoff, S
    Liljeholm, Maria
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Malm, C
    Remes, K
    Vindelöv, L
    Andréasson, B
    The outcome of allo-HSCT for 92 patients with myelofibrosis in the Nordic countries.2012Inngår i: Bone Marrow Transplantation, ISSN 0268-3369, E-ISSN 1476-5365, Vol. 47, nr 3, 380-386 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Between 1982 and 2009 a total of 92 patients with myelofibrosis (MF) in chronic phase underwent allo-SCT in nine Nordic transplant centers. Myeloablative conditioning (MAC) was given to 40 patients, and reduced intensity conditioning (RIC) was used in 52 patients. The mean age in the two groups at transplantation was 46±12 and 55±8 years, respectively (P<0.001). When adjustment for age differences was made, the survival of the patients treated with RIC was significantly better (P=0.003). Among the RIC patients, the survival was significantly (P=0.003) better for the patients with age <60 years (a 10-year survival close to 80%) than for the older patients. The type of stem cell donor did not significantly affect the survival. No significant difference was found in TRM at 100 days between the MAC- and the RIC-treated patients. The probability of survival at 5 years was 49% for the MAC-treated patients and 59% in the RIC group (P=0.125). Patients treated with RIC experienced significantly less aGVHD compared with patients treated with MAC (P<0.001). The OS at 5 years was 70, 59 and 41% for patients with Lille score 0, 1 and 2, respectively (P=0.038, when age adjustment was made). Twenty-one percent of the patients in the RIC group were given donor lymphocyte infusion because of incomplete donor chimerism, compared with none of the MAC-treated patients (P<0.002). Nine percent of the patients needed a second transplant because of graft failure, progressive disease or transformation to AML, with no significant difference between the groups. Our conclusions are (1) allo-SCT performed with RIC gives a better survival compared with MAC. (2) age over 60 years is strongly related to a worse outcome and (3) patients with higher Lille score had a shorter survival.

  • 3. Abrahamsson, Niclas
    et al.
    Borjesson, Joey Lau
    Sundbom, Magnus
    Wiklund, Urban
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    Karlsson, F. Anders
    Eriksson, Jan W.
    Gastric Bypass Reduces Symptoms and Hormonal Responses in Hypoglycemia2016Inngår i: Diabetes, ISSN 0012-1797, E-ISSN 1939-327X, Vol. 65, nr 9, 2667-2675 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Gastric bypass (GBP) surgery, one of the most common bariatric procedures, induces weight loss and metabolic effects. The mechanisms are not fully understood, but reduced food intake and effects on gastrointestinal hormones are thought to contribute. We recently observed that GBP patients have lowered glucose levels and frequent asymptomatic hypoglycemic episodes. Here, we subjected patients before and after undergoing GBP surgery to hypoglycemia and examined symptoms and hormonal and autonomic nerve responses. Twelve obese patients without diabetes (8 women, mean age 43.1 years [SD 10.8] and BMI 40.6 kg/m(2) [SD 3.1]) were examined before and 23 weeks (range 19-25) after GBP surgery with hyperinsulinemic-hypoglycemic clamp (stepwise to plasma glucose 2.7 mmol/L). The mean change in Edinburgh Hypoglycemia Score during clamp was attenuated from 10.7 (6.4) before surgery to 5.2 (4.9) after surgery. There were also marked postsurgery reductions in levels of glucagon, cortisol, and catecholamine and the sympathetic nerve responses to hypoglycemia. In addition, growth hormone displayed a delayed response but to a higher peak level. Levels of glucagon-like peptide 1 and gastric inhibitory polypeptide rose during hypoglycemia but rose less postsurgery compared with presurgery. Thus, GBP surgery causes a resetting of glucose homeostasis, which reduces symptoms and neurohormonal responses to hypoglycemia. Further studies should address the underlying mechanisms as well as their impact on the overall metabolic effects of GBP surgery.

  • 4. Adolfsson, Jan
    et al.
    Garmo, Hans
    Varenhorst, Eberhard
    Ahlgren, Göran
    Ahlstrand, Christer
    Andrén, Ove
    Bill-Axelson, Anna
    Bratt, Ola
    Damber, Jan-Erik
    Hellström, Karin
    Hellström, Magnus
    Holmberg, Erik
    Holmberg, Lars
    Hugosson, Jonas
    Johansson, Jan-Erik
    Petterson, Bill
    Törnblom, Magnus
    Widmark, Anders
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Stattin, Pär
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Clinical characteristics and primary treatment of prostate cancer in Sweden between 1996 and 2005.2007Inngår i: Scand J Urol Nephrol, ISSN 0036-5599, Vol. 41, 456-477 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 5.
    Aglund, Kristina
    et al.
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Rauvala, Marita
    Puistola, Ulla
    Ångström, Tord
    Umeå universitet, Medicinsk fakultet, Medicinsk biovetenskap.
    Turpeenniemi-Hujanen, Taina
    Zackrisson, Björn
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Stendahl, Ulf
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Gelatinases A and B (MMP-2 and MMP-9) in endometrial cancer-MMP-9 correlates to the grade and the stage2004Inngår i: Gynecol Oncol, ISSN 0090-8258, Vol. 94, nr 3, 699-704 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 6. Ahlqvist-Rastad, Jane
    et al.
    Albertsson, Maria
    Bergh, Jonas
    Birgegård, Gunnar
    Johansson, Peter
    Jonsson, Bertil
    Kjellén, Elisabeth
    Påhlman, Sven
    Zackrisson, Björn
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Österborg, Anders
    Erythropoietin therapy and cancer related anaemia: updated Swedish recommendations.2007Inngår i: Med Oncol, ISSN 1357-0560, Vol. 24, nr 3, 267-272 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 7.
    Akhtari, Mohammad Mehdi
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för fysik. Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    3D Structural similarity check between CT and SCT2014Independent thesis Advanced level (degree of Master (Two Years)), 10 poäng / 15 hpOppgave
    Abstract [en]

    The aim of the current work was to develop and test a method for comparing the geometrical representation of a patient using computed tomography (CT), and CT like images derived from magnetic resonance images (MRI). It would be beneficial to use MRI alone for both target delineation and treatment planning to save time and costs. This was first investigated in Umea university Hospital by introducing substitute computed tomography (SCT) obtained from MRI images and which can be used as CT equivalent information. The data that is used in this report are from five patients with intracranial tumors; A MATLAB code has been developed to compare DDRs based on s-CT data with CT based DRR’s for these five patients.

  • 8. Alakurtti, Kati
    et al.
    Johansson, Jarkko J.
    Joutsa, Juho
    Laine, Matti
    Backman, Lars
    Nyberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    Rinne, Juha O.
    Long-term test-retest reliability of striatal and extrastriatal dopamine D-2/3 receptor binding: study with [C-11]raclopride and high-resolution PET2015Inngår i: Journal of Cerebral Blood Flow and Metabolism, ISSN 0271-678X, E-ISSN 1559-7016, Vol. 35, nr 7, 1199-1205 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We measured the long-term test-retest reliability of [C-11]raclopride binding in striatal subregions, the thalamus and the cortex using the bolus-plus-infusion method and a high-resolution positron emission scanner. Seven healthy male volunteers underwent two positron emission tomography (PET) [C-11]raclopride assessments, with a 5-week retest interval. D-2/3 receptor availability was quantified as binding potential using the simplified reference tissue model. Absolute variability (VAR) and intraclass correlation coefficient (ICC) values indicated very good reproducibility for the striatum and were 4.5%/0.82, 3.9%/0.83, and 3.9%/0.82, for the caudate nucleus, putamen, and ventral striatum, respectively. Thalamic reliability was also very good, with VAR of 3.7% and ICC of 0.92. Test-retest data for cortical areas showed good to moderate reproducibility (6.1% to 13.1%). Our results are in line with previous test-retest studies of [C-11]raclopride binding in the striatum. A novel finding is the relatively low variability of [C-11]raclopride binding, providing suggestive evidence that extrastriatal D-2/3 binding can be studied in vivo with [C-11]raclopride PET to be verified in future studies.

  • 9.
    Alamdari, Farhood Iranparvar
    et al.
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Urologi och andrologi. Urologi och andrologi.
    Rasmuson, Torgny
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi. Onkologi.
    Grankvist, Kjell
    Umeå universitet, Medicinsk fakultet, Medicinsk biovetenskap, Klinisk kemi. Klinisk kemi.
    Ljungberg, Börje
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Urologi och andrologi. Urologi och andrologi.
    Angiogenesis and other markers for prediction of survival in metastatic renal cell carcinoma.2007Inngår i: Scandinavian Journal of Urology and Nephrology, ISSN 0036-5599, Vol. 41, nr 1, 5-9 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 10. Aleksandrova, Krasimira
    et al.
    Chuang, Shu-Chun
    Boeing, Heiner
    Zuo, Hui
    Tell, Grethe S
    Pischon, Tobias
    Jenab, Mazda
    Bueno-de-Mesquita, Bas
    Vollset, Stein Emil
    Midttun, Øivind
    Ueland, Per Magne
    Fedirko, Veronika
    Johansson, Mattias
    Weiderpass, Elisabete
    Severi, Gianluca
    Racine, Antoine
    Boutron-Ruault, Marie-Christine
    Kaaks, Rudolf
    Kühn, Tilman
    Tjønneland, Anne
    Overvad, Kim
    Quirós, J Ramón
    Jakszyn, Paula
    Sánchez, María-José
    Dorronsoro, Miren
    Chirlaque, Maria-Dolores
    Ardanaz, Eva
    Khaw, Kay-Tee
    Wareham, Nicholas J
    Travis, Ruth C
    Trichopoulou, Antonia
    Lagiou, Pagona
    Trichopoulos, Dimitrios
    Palli, Domenico
    Sieri, Sabina
    Tumino, Rosario
    Panico, Salvatore
    May, Anne M
    Palmqvist, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    Ljuslinder, Ingrid
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Kong, So Yeon J
    Freisling, Heinz
    Gunter, Marc J
    Lu, Yunxia
    Cross, Amanda J
    Riboli, Elio
    Vineis, Paolo
    A prospective study of the immune system activation biomarker neopterin and colorectal cancer risk2015Inngår i: Journal of the National Cancer Institute, ISSN 0027-8874, E-ISSN 1460-2105, Vol. 107, nr 4, djv010Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Neopterin may be relevant for colorectal cancer (CRC) development, as a biomarker of cellular immune activity exerting pleiotropic effects on cellular ageing, oxidative stress, and inflammation. So far, the association between prediagnostic neopterin and colon and rectal cancer risk has not been evaluated in human populations. Methods: A nested case-control study was conducted within the European Prospective Investigation into Cancer and Nutrition cohort using data on plasma concentrations of total neopterin (T-N, sum of neopterin and 7,8-dihydroneopterin) in 830 incident CRC case patients (561 colon and 269 rectal) matched within risk sets to 830 control participants. A subsequent replication study used data from the Hordaland Health Study, where 173 CRC case patients have been diagnosed among 6594 healthy participants over 12 years of follow-up. Results: After multivariable adjustment for a priori chosen CRC risk factors, a "U-shaped" association of T-N with CRC was revealed. Compared with the second quintile of the T-N distribution, the relative risks for the first, third, fourth, and fifth quintiles were 2.37 (95% CI = 1.66 to 3.39), 1.24 (95% CI = 0.87 to 1.77), 1.55 (95% CI = 1.08 to 2.22), and 2.31 (95% CI = 1.63 to 3.27), respectively. Replication of these associations within the Hordaland Health Study yielded similar results. No differences have been observed when the associations were explored by colon and rectal cancer site (two-sided P-difference = .87) and after excluding case patients diagnosed within the first four follow-up years. Conclusions: These novel findings provide evidence of the role of both suppressed and activated cell-mediated immunity as reflected by prediagnostic T-N concentrations in the development of CRC.

  • 11. Aleksandrova, Krasimira
    et al.
    Jenab, Mazda
    Bueno-de-Mesquita, H. Bas
    Fedirko, Veronika
    Kaaks, Rudolf
    Lukanova, Annekatrin
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    van Duijnhoven, Franzel J. B.
    Jansen, Eugene
    Rinaldi, Sabina
    Romieu, Isabelle
    Ferrari, Pietro
    Murphy, Neil
    Gunter, Marc J.
    Riboli, Elio
    Westhpal, Sabine
    Overvad, Kim
    Tjonneland, Anne
    Halkjaer, Jytte
    Boutron-Ruault, Marie-Christine
    Dossus, Laure
    Racine, Antoine
    Trichopoulou, Antonia
    Bamia, Christina
    Orfanos, Philippos
    Agnoli, Claudia
    Palli, Domenico
    Panico, Salvatore
    Tumino, Rosario
    Vineis, Paolo
    Peeters, Petra H.
    Duell, Eric J.
    Molina-Montes, Esther
    Ramon Quiros, J.
    Dorronsoro, Miren
    Chirlaque, Maria-Dolores
    Barricarte, Aurelio
    Ljuslinder, Ingrid
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Palmqvist, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    Travis, Ruth C.
    Khaw, Kay-Tee
    Wareham, Nicholas
    Pischon, Tobias
    Boeing, Heiner
    Biomarker patterns of inflammatory and metabolic pathways are associated with risk of colorectal cancer: results from the European Prospective Investigation into Cancer and Nutrition (EPIC)2014Inngår i: European Journal of Epidemiology, ISSN 0393-2990, E-ISSN 1573-7284, Vol. 29, nr 4, 261-275 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A number of biomarkers of inflammatory and metabolic pathways are individually related to higher risk of colorectal cancer (CRC); however, the association between biomarker patterns and CRC incidence has not been previously evaluated. Our study investigates the association of biomarker patterns with CRC in a prospective nested case-control study within the European Prospective Investigation into Cancer and Nutrition (EPIC). During median follow-up time of 7.0 (3.7-9.4) years, 1,260 incident CRC cases occurred and were matched to 1,260 controls using risk-set sampling. Pre-diagnostic measurements of C-peptide, glycated hemoglobin, triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), C-reactive protein (CRP), reactive oxygen metabolites (ROM), insulin-like growth factor 1, adiponectin, leptin and soluble leptin receptor (sOB-R) were used to derive biomarker patterns from principal component analysis (PCA). The relation with CRC incidence was assessed using conditional logistic regression models. We identified four biomarker patterns 'HDL-C/Adiponectin fractions', 'ROM/CRP', 'TG/C-peptide' and 'leptin/sOB-R' to explain 60 % of the overall biomarker variance. In multivariable-adjusted logistic regression, the 'HDL-C/Adiponectin fractions', 'ROM/CRP' and 'leptin/sOB-R' patterns were associated with CRC risk [for the highest quartile vs the lowest, incidence rate ratio (IRR) = 0.69, 95 % CI 0.51-0.93, P-trend = 0.01; IRR = 1.70, 95 % CI 1.30-2.23, P-trend = 0.002; and IRR = 0.79, 95 % CI 0.58-1.07; P-trend = 0.05, respectively]. In contrast, the 'TG/C-peptide' pattern was not associated with CRC risk (IRR = 0.75, 95 % CI 0.56-1.00, P-trend = 0.24). After cases within the first 2 follow-up years were excluded, the 'ROM/CRP' pattern was no longer associated with CRC risk, suggesting potential influence of preclinical disease on these associations. By application of PCA, the study identified 'HDL-C/Adiponectin fractions', 'ROM/CRP' and 'leptin/sOB-R' as biomarker patterns representing potentially important pathways for CRC development.

  • 12. Aleksandrova, Krasimira
    et al.
    Pischon, Tobias
    Jenab, Mazda
    Bueno-de-Mesquita, H Bas
    Fedirko, Veronika
    Norat, Teresa
    Romaguera, Dora
    Knüppel, Sven
    Boutron-Ruault, Marie-Christine
    Dossus, Laure
    Dartois, Laureen
    Kaaks, Rudolf
    Li, Kuanrong
    Tjønneland, Anne
    Overvad, Kim
    Quirós, José Ramón
    Buckland, Genevieve
    Sánchez, María José
    Dorronsoro, Miren
    Chirlaque, Maria-Dolores
    Barricarte, Aurelio
    Khaw, Kay-Tee
    Wareham, Nicholas J
    Bradbury, Kathryn E
    Trichopoulou, Antonia
    Lagiou, Pagona
    Trichopoulos, Dimitrios
    Palli, Domenico
    Krogh, Vittorio
    Tumino, Rosario
    Naccarati, Alessio
    Panico, Salvatore
    Siersema, Peter D
    Peeters, Petra HM
    Ljuslinder, Ingrid
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Johansson, Ingegerd
    Umeå universitet, Medicinska fakulteten, Institutionen för odontologi.
    Ericson, Ulrika
    Ohlsson, Bodil
    Weiderpass, Elisabete
    Skeie, Guri
    Borch, Kristin
    Rinaldi, Sabina
    Romieu, Isabelle
    Kong, Joyce
    Gunter, Marc J
    Ward, Heather A
    Riboli, Elio
    Boeing, Heiner
    Combined impact of healthy lifestyle factors on colorectal cancer: a large European cohort study2014Inngår i: BMC Medicine, ISSN 1741-7015, Vol. 12, nr 1, 168- s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Excess body weight, physical activity, smoking, alcohol consumption and certain dietary factors are individually related to colorectal cancer (CRC) risk; however, little is known about their joint effects. The aim of this study was to develop a healthy lifestyle index (HLI) composed of five potentially modifiable lifestyle factors - healthy weight, physical activity, non-smoking, limited alcohol consumption and a healthy diet, and to explore the association of this index with CRC incidence using data collected within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. METHODS: In the EPIC cohort, a total of 347,237 men and women, 25- to 70-years old, provided dietary and lifestyle information at study baseline (1992 to 2000). Over a median follow-up time of 12 years, 3,759 incident CRC cases were identified. The association between a HLI and CRC risk was evaluated using Cox proportional hazards regression models and population attributable risks (PARs) have been calculated. RESULTS: After accounting for study centre, age, sex and education, compared with 0 or 1 healthy lifestyle factors, the hazard ratio (HR) for CRC was 0.87 (95% confidence interval (CI): 0.44 to 0.77) for two factors, 0.79 (95% CI: 0.70 to 0.89) for three factors, 0.66 (95% CI: 0.58 to 0.75) for four factors and 0.63 (95% CI: 0.54 to 0.74) for five factors; P-trend <0.0001. The associations were present for both colon and rectal cancers, HRs, 0.61 (95% CI: 0.50 to 0.74; P for trend <0.0001) for colon cancer and 0.68 (95% CI: 0.53 to 0.88; P-trend <0.0001) for rectal cancer, respectively (P-difference by cancer sub-site = 0.10). Overall, 16% of the new CRC cases (22% in men and 11% in women) were attributable to not adhering to a combination of all five healthy lifestyle behaviours included in the index. CONCLUSIONS: Combined lifestyle factors are associated with a lower incidence of CRC in European populations characterized by western lifestyles. Prevention strategies considering complex targeting of multiple lifestyle factors may provide practical means for improved CRC prevention.

  • 13.
    Alenius Dahlqvist, Jenny
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Pediatrik.
    Karlsson, Marcus
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Wiklund, Urban
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Hörnsten, Rolf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Klinisk fysiologi.
    Rydberg, Annika
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Pediatrik.
    Handheld ECG in analysis of arrhythmia and heart rate variability in children with Fontan circulation2014Inngår i: Journal of Electrocardiology, ISSN 0022-0736, E-ISSN 1532-8430, Vol. 47, nr 3, 374-382 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Our aim was to evaluate the intermittent use of a handheld ECG system for detecting silent arrhythmias and cardiac autonomic dysfunction in children with univentricular hearts. Methods: Twenty-seven patients performed intermittent ECG recordings with handheld devices during a 14-day period. A manual arrhythmia analysis was performed. We analyzed heart rate variability (HRV) using scatter plots of all interbeat intervals (Poincare plots) from the total observation period. Reference values of HRV indices were determined from Holter-ECGs in 41 healthy children. Results: One asymptomatic patient had frequent ventricular extra systoles. Another patient had episodes with supraventricular tachycardia (with concomitant palpitations). Seven patients showed reduced HRV. Conclusions: Asymptomatic arrhythmia was detected in one patient. The proposed method for pooling of intermittent recordings from handheld or similar devices may be used for detection of arrhythmias as well as for cardiac autonomic dysfunction.

  • 14.
    Alenius Dahlqvist, Jenny
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Pediatrik.
    Karlsson, Marcus
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Wiklund, Urban
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Hörnsten, Rolf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Klinisk fysiologi.
    Strömvall-Larsson, Eva
    Division of Cardiology, Department of Paediatrics, Sahlgrenska University Hospital/Queen Silvia Children’s Hospital, Göteborg University, Göteborg, Sweden.
    Berggren, Håkan
    Division of Cardiothoracic Surgery, Department of Paediatrics, Sahlgrenska University Hospital/Queen Silvia Children’s Hospital, Göteborg University, Göteborg, Sweden.
    Hanseus, Katarina
    Department of Paediatrics, Children’s Hospital, Lund University Hospital, Lund, Sweden.
    Johansson, Sune
    Paediatric Cardiac Surgical Unit, Children’s Hospital, Lund University Hospital, Lund, Sweden.
    Rydberg, Annika
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Pediatrik.
    Heart rate variability in children with fontan circulation: lateral tunnel and extracardiac conduit2012Inngår i: Pediatric Cardiology, ISSN 0172-0643, E-ISSN 1432-1971, Vol. 33, nr 2, 307-315 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The technique in Fontan surgery has developed from the lateral tunnel (LT) toward the extracardiac conduit (EC) used to reduce long-term complications such as atrial arrhythmia and sinus node dysfunction. Heart rate variability (HRV) examines cardiac nervous activity controlling the sinus node. This study aimed to investigate HRV in a cohort of children with univentricular hearts, focusing on the relation between HRV and surgical procedure. For 112 children with Fontan circulation, HRV was analyzed using power spectral analysis. Spectral power was determined in three regions: very-low-frequency (VLF), low-frequency (LF), and high-frequency (HF) regions. Patients were compared with 66 healthy controls subject. Patients with LT were compared with patients who had EC. The children with Fontan circulation showed a significantly reduced HRV including total power (P < 0.0001), VLF (P < 0.0001), LF (P < 0.0001), and HF (P = 0.001) compared with the control subjects. The LT and EC patients did not differ significantly. Reduced HRV was found in both the LT and EC patients. In terms of HRV reduction, EC was not superior to LT.

  • 15.
    Alexeyev, Oleg
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi. Umeå universitet, Medicinska fakulteten, Institutionen för klinisk mikrobiologi, Virologi.
    Bergh, Johanna
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    Marklund, Ingrid
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk mikrobiologi, Virologi.
    Thellenberg Karlsson, Camilla
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Wiklund, Fredrik
    Grönberg, Henrik
    Bergh, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    Elgh, Fredrik
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk mikrobiologi, Virologi.
    Association between the presence of bacterial 16S RNA in prostate specimens taken during transurethral resection of prostate and subsequent risk of prostate cancer (Sweden)2006Inngår i: Cancer Causes and Control, ISSN 0957-5243, E-ISSN 1573-7225, Vol. 17, nr 9, 1127-1133 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: To study bacterial 16S RNA in archival prostate samples from 352 patients with benign prostate hyperplasia (BPH) and evaluate whether the presence of bacterial DNA was different in those who later developed prostate cancer (n = 171) and in the matched controls that did not progress to cancer (n = 181).

    Methods: 16S DNA PCR followed by cloning and sequencing the positive samples.

    Results: In 96/352 (27%) of the prostate tissue specimens 16S RNA were detected. Sequence analysis revealed Propionibacterium acnes as the predominant microorganism (23% of 16S RNA positive patients). The second most frequent isolate—Escherichia coli was found in 12 (12%) patients. The other isolates included Pseudomonas sp. (3 patients), Actinomyces sp. (2), Streptococcus mutans (1), Corynebacterium sp. (2),Nocardioides sp. (1), Rhodococcus sp. (1) Veillonella sp. (2). In P. acnes positive samples 62% exhibited severe histological inflammation versus 50% in the bacteria-negative group (p = 0.602). The presence of P. acnes in the prostate was associated with prostate cancer development (OR 2.17, 95% CI 0.77–6.95).

    Conclusions: This study has revealed P. acnes as the most common bacteria in the prostate in BPH. Further studies are needed to clarify its role in contributing to the development of prostatic inflammation and prostate cancer.

  • 16.
    Alfredson, H.
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Öhberg, L.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    Forsgren, Sture
    Umeå universitet, Medicinska fakulteten, Institutionen för integrativ medicinsk biologi (IMB), Anatomi.
    Is vasculo-neural ingrowth the cause of pain in chronic Achilles tendinosis?: An investigation using US and colour Doppler, immunohistochemistry, and diagnostic injections2003Inngår i: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, Vol. 11, nr 5, 334-338 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 17.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Harstad, Herlof
    Haugen, Simen
    Ohberg, Lars
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Diagnostisk radiologi.
    Sclerosing polidocanol injections to treat chronic painful shoulder impingement syndrome-results of a two-centre collaborative pilot study.2006Inngår i: Knee Surg Sports Traumatol Arthrosc, ISSN 0942-2056, Vol. 14, nr 12, 1321-6 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 18.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Masci, Lorenzo
    Öhberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Partial midportion Achilles tendon ruptures: new sonographic findings helpful for diagnosis.2011Inngår i: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 45, nr 5, 429-432 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Partial Achilles tendon ruptures are not always easy to diagnose. A history including a sudden onset of pain, and/or relative weakness in plantar flexion force, are indicators. The most loaded side of the Achilles tendon is the dorsal side (skin side). OBJECTIVE: To evaluate the ultrasound (US) and Doppler (CD) findings in patients with a suspected partial rupture in the Achilles tendon. Material and METHODS: Seventeen patients (16 men and 1 woman) with a mean age of 36 years (range 23-71) were examined clinically and by US+CD because of midportion Achilles tendon pain. There was an acute onset in 14/17 patients, and all had painful weakness during tendon loading activity. RESULTS: In all patients the US examination showed a partial Achilles tendon rupture, presented as a disrupted dorsal (skin side) tendon line and an irregular tendon structure mainly located in the dorsal and mid-tendon. The size of the rupture varied from 1/3 to 2/3 of the tendon thickness. In the dorsal part of the tendon, corresponding to the region with disrupted tendon line and irregular structure, CD examination showed high blood flow-most often of a longitudinal character. Six of the patients were surgically treated, and macroscopical examination verified the ultrasound findings, showing disruption on the dorsal side, and a partial rupture in the dorsal and mid- tendon. CONCLUSIONS: Ultrasound and Doppler examination can be helpful tools to diagnose partial midportion Achilles tendon ruptures. The characteristic findings of a disrupted dorsal tendon line, and high blood flow in the structurally abnormal dorsal tendon, indicate a partial rupture.

  • 19.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Ohberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Increased intratendinous vascularity in the early period after sclerosing injection treatment in Achilles tendinosis: a healing response?2006Inngår i: Knee Surg Sports Traumatol Arthrosc, ISSN 0942-2056, Vol. 14, nr 4, 399-401 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 20.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Pietilä, Tom
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Öhberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Lorentzon, Ronny
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Achilles tendinosis and calf muscle strength: the effect of short-term immobilization after surgical treatment1998Inngår i: American Journal of Sports Medicine, ISSN 0363-5465, E-ISSN 1552-3365, Vol. 26, nr 2, 166-71 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We prospectively studied calf muscle strength in 7 men and 4 women (mean age, 40.9 +/- 10.1 years) who had surgical treatment for chronic Achilles tendinosis. Surgery was followed by immobilization in a weightbearing below-the-knee plaster cast for 2 weeks followed by a stepwise increasing strength training program. Strength measurements (peak torque and total work) were done preoperatively (Week 0) and at 16, 26, and 52 weeks postoperatively. We measured isokinetic concentric plantar flexion strength at 90 and 225 deg/sec and eccentric flexion strength at 90 deg/sec on both the injured and noninjured sides. Preoperatively, concentric and eccentric strength were significantly lower on the injured side at 90 and 225 deg/sec. Postoperatively, concentric peak torque on the injured side decreased significantly between Weeks 0 and 16 and increased significantly between Weeks 26 and 52 at 90 deg/sec but was significantly lower than that on the noninjured side at all periods and at both velocities. The eccentric strength was significantly lower on the injured side at Week 26 but increased significantly until at Week 52 no significant differences between the sides could be demonstrated. It seems, therefore, that the recovery in concentric and eccentric calf muscle strength after surgery for Achilles tendinosis is slow. We saw no obvious advantages in recovery of muscle strength with a short immobilization time (2 weeks) versus a longer (6 weeks) period used in a previous study.

  • 21.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Willberg, Lotta
    Öhberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Forsgren, Sture
    Umeå universitet, Medicinska fakulteten, Institutionen för integrativ medicinsk biologi (IMB), Anatomi.
    Ultrasound and doppler-guided artthroscopic shaving for the treatment of patellar tendinopathy/jumper´s knee: biological background and description of method2011Inngår i: Anterior knee pain and patellar instability / [ed] Sanchis-Alfonso, Vicente, London: Springer London, 2011, 367-371 s.Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    Treatment with ultrasound and Doppler-guided arthroscopic shaving of the region with vessels and nerves outside the dorsal tendon has shown promising clinical results in patients with proximal patellar tendinopathy/Jumper´s knee. The results concerning only a limited patient material has been published in a scientific paper. Results on larger materials are under evaluation for later publication. Proper understanding of the ultrasound and Doppler findings, to enable for a precise and minimal arthroscopic shaving procedure on the dorsal side of the tendon, are cornerstones using this new type of treatment.

  • 22.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Öhberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Neovascularisation in chronic painful patellar tendinosis - promising results after sclerosing neovessels outside the tendon challenge the need for surgery2005Inngår i: Knee Surg Sports Traumatol Arthrosc, ISSN 0942-2056, Vol. 13, nr 2, 74-80 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 23.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Öhberg, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Sclerosing injections to areas of neo-vascularisation reduce pain in chronic Achilles tendinopathy: a double-blind randomised controlled trial2005Inngår i: Knee Surgery, Sports Traumatology, Arthroscopy, ISSN 0942-2056, E-ISSN 1433-7347, Vol. 13, nr 4, 338-344 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 24.
    Alfredson, Håkan
    et al.
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Öhberg, Lars
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Diagnostisk radiologi.
    Zeisig, Ewa
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Lorentzon, Ronny
    Umeå universitet, Medicinsk fakultet, Kirurgisk och perioperativ vetenskap, Idrottsmedicin.
    Treatment of midportion Achilles tendinosis: similar clinical results with US and CD-guided surgery outside the tendon and sclerosing polidocanol injections.2007Inngår i: Knee Surg Sports Traumatol Arthrosc, ISSN 0942-2056, Vol. 15, nr 12, 1504-1509 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 25. Ali, Alaa M. G.
    et al.
    Schmidt, Marjanka K.
    Bolla, Manjeet K.
    Wang, Qin
    Gago-Dominguez, M.
    Esteban Castelao, J.
    Carracedo, Angel
    Munoz Garzon, Victor
    Bojesen, Stig E.
    Nordestgaard, Borge G.
    Flyger, Henrik
    Chang-Claude, Jenny
    Vrieling, Alina
    Rudolph, Anja
    Seibold, Petra
    Nevanlinna, Heli
    Muranen, Taru A.
    Aaltonen, Kirsimari
    Blomqvist, Carl
    Matsuo, Keitaro
    Ito, Hidemi
    Iwata, Hiroji
    Horio, Akiyo
    John, Esther M.
    Sherman, Mark
    Lissowska, Jolanta
    Figueroa, Jonine
    Garcia-Closas, Montserrat
    Anton-Culver, Hoda
    Shah, Mitul
    Hopper, John L.
    Trichopoulou, Antonia
    Bueno-de-Mesquita, Bas
    Krogh, Vittorio
    Weiderpass, Elisabete
    Andersson, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Clavel-Chapelon, Francoise
    Dossus, Laure
    Fagherazzi, Guy
    Peeters, Petra H.
    Olsen, Anja
    Wishart, Gordon C.
    Easton, Douglas F.
    Borgquist, Signe
    Overvad, Kim
    Barricarte, Aurelio
    Gonzalez, Carlos A.
    Sanchez, Maria-Jose
    Amiano, Pilar
    Riboli, Elio
    Key, Tim
    Pharoah, Paul D.
    Alcohol Consumption and Survival after a Breast Cancer Diagnosis: A Literature-Based Meta-analysis and Collaborative Analysis of Data for 29,239 Cases2014Inngår i: Cancer Epidemiology, Biomarkers and Prevention, ISSN 1055-9965, E-ISSN 1538-7755, Vol. 23, nr 6, 934-945 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Evidence for an association of alcohol consumption with prognosis after a diagnosis of breast cancer has been inconsistent. We have reviewed and summarized the published evidence and evaluated the association using individual patient data from multiple case cohorts. Methods: A MEDLINE search to identify studies published up to January 2013 was performed. We combined published estimates of survival time for "moderate drinkers" versus nondrinkers. An analysis of individual participant data using Cox regression was carried out using data from 11 case cohorts. Results: We identified 11 published studies suitable for inclusion in the meta-analysis. Moderate postdiagnosis alcohol consumption was not associated with overall survival [HR, 0.95; 95% confidence interval (CI), 0.85-1.05], but there was some evidence of better survival associated with prediagnosis consumption (HR, 0.80; 95% CI, 0.73-0.88). Individual data on alcohol consumption for 29,239 cases with 4,839 deaths were available from the 11 case cohorts, all of which had data on estrogen receptor (ER) status. For women with ER-positive disease, there was little evidence that pre-or postdiagnosis alcohol consumption is associated with breast cancer-specific mortality, with some evidence of a negative association with all-cause mortality. On the basis of a single study, moderate postdiagnosis alcohol intake was associated with a small reduction in breast cancer-specific mortality for women with ER-negative disease. There was no association with prediagnosis intake for women with ER-negative disease. Conclusion: There was little evidence that pre- or post-diagnosis alcohol consumption is associated with breast cancer-specific mortality for women with ER-positive disease. There was weak evidence that moderate post-diagnosis alcohol intake is associated with a small reduction in breast cancer-specific mortality in ER-negative disease. Impact: Considering the totality of the evidence, moderate postdiagnosis alcohol consumption is unlikely to have a major adverse effect on the survival of women with breast cancer.

  • 26.
    Alkstedt, Karl
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Respiratory gated PET/CT in lung cancer, a comparison with static PET/CT2012Independent thesis Advanced level (professional degree), 20 poäng / 30 hpOppgave
  • 27. Almquist, Martin
    et al.
    Johansen, Dorthe
    Björge, Tone
    Ulmer, Hanno
    Lindkvist, Björn
    Stocks, Tanja
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Hallmans, Göran
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Näringsforskning.
    Engeland, Anders
    Rapp, Kilian
    Jonsson, Håkan
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Selmer, Randi
    Diem, Guenter
    Häggström, Christel
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Tretli, Steinar
    Stattin, Pär
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Manjer, Jonas
    Metabolic factors and risk of thyroid cancer in the Metabolic syndrome and Cancer project (Me-Can)2011Inngår i: Cancer Causes and Control, ISSN 0957-5243, E-ISSN 1573-7225, Vol. 22, nr 5, 743-751 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective  To investigate metabolic factors and their possible impact on risk of thyroid cancer. Methods  A prospective cohort study was conducted based on seven population-based cohorts in Norway, Austria, and Sweden, in the Metabolic syndrome and Cancer project (Me-Can). Altogether 578,700 men and women with a mean age of 44.0 years at baseline were followed for on average 12.0 years. Relative risk of incident thyroid cancer was assessed by levels of BMI, blood pressure, and blood levels of glucose, cholesterol, triglycerides, and by a combined metabolic syndrome (MetS) score. Risk estimates were investigated for quintiles, and a z score distribution of exposures was analyzed using Cox proportional hazards regression. Results  During follow-up, 255 women and 133 men were diagnosed with thyroid cancer. In women, there was an inverse association between glucose and thyroid cancer risk, with adjusted RR: 95% CI was 0.61 (0.41–0.90), p trend = 0.02 in the fifth versus the first quintile, and a positive association between BMI and thyroid cancer risk with a significant trend over quintiles. There was no association between the other metabolic factors, single or combined (Met-S), and thyroid cancer. Conclusion  In women, BMI was positively, while blood glucose levels were inversely, associated with thyroid cancer.

  • 28. Alrifaiy, Ahmed
    et al.
    Borg, Johan
    Lindahl, Olof A.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology; CMTF, Centre for Biomedical Engineering and Physics, Luleå and Umeå, Sweden; Department of Engineering Sciences and Mathematics, Luleå University of Technology.
    Ramser, Kerstin
    A lab-on-a-chip for hypoxic patch clamp measurements combined with optical tweezers and spectroscopy-first investigations of single biological cells2015Inngår i: Biomedical engineering online, ISSN 1475-925X, Vol. 14, 36Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The response and the reaction of the brain system to hypoxia is a vital research subject that requires special instrumentation. With this research subject in focus, a new multifunctional lab-on-a-chip (LOC) system with control over the oxygen content for studies on biological cells was developed. The chip was designed to incorporate the patch clamp technique, optical tweezers and absorption spectroscopy. The performance of the LOC was tested by a series of experiments. The oxygen content within the channels of the LOC was monitored by an oxygen sensor and verified by simultaneously studying the oxygenation state of chicken red blood cells (RBCs) with absorption spectra. The chicken RBCs were manipulated optically and steered in three dimensions towards a patch-clamp micropipette in a closed microfluidic channel. The oxygen level within the channels could be changed from a normoxic value of 18% O-2 to an anoxic value of 0.0-0.5% O-2. A time series of 3 experiments were performed, showing that the spectral transfer from the oxygenated to the deoxygenated state occurred after about 227 +/- 1 s and a fully developed deoxygenated spectrum was observed after 298 +/- 1 s, a mean value of 3 experiments. The tightness of the chamber to oxygen diffusion was verified by stopping the flow into the channel system while continuously recording absorption spectra showing an unchanged deoxygenated state during 5400 +/- 2 s. A transfer of the oxygenated absorption spectra was achieved after 426 +/- 1 s when exposing the cell to normoxic buffer. This showed the long time viability of the investigated cells. Successful patching and sealing were established on a trapped RBC and the whole-cell access (Ra) and membrane (Rm) resistances were measured to be 5.033 +/- 0.412 M Omega and 889.7 +/- 1.74 M Omega respectively.

  • 29. Alrifaiy, Ahmed
    et al.
    Lindahl, Olof A
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik.
    Ramser, Kerstin
    Polymer-based microfluidic devices for pharmacy, biology and tissue engineering2012Inngår i: Polymers, ISSN 2073-4360, Vol. 4, nr 3, 1349-1398 s.Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    This paper reviews microfluidic technologies with emphasis on applications in the fields of pharmacy, biology, and tissue engineering. Design and fabrication of microfluidic systems are discussed with respect to specific biological concerns, such as biocompatibility and cell viability. Recent applications and developments on genetic analysis, cell culture, cell manipulation, biosensors, pathogen detection systems, diagnostic devices, high-throughput screening and biomaterial synthesis for tissue engineering are presented. The pros and cons of materials like polydimethylsiloxane (PDMS), polymethylmethacrylate (PMMA), polystyrene (PS), polycarbonate (PC), cyclic olefin copolymer (COC), glass, and silicon are discussed in terms of biocompatibility and fabrication aspects. Microfluidic devices are widely used in life sciences. Here, commercialization and research trends of microfluidics as new, easy to use, and cost-effective measurement tools at the cell/tissue level are critically reviewed.

  • 30.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Hallberg, Per
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Jóhannesson, Gauti
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Oftalmiatrik.
    Lindén, Christina
    Umeå universitet, Medicinska fakulteten, Institutionen för klinisk vetenskap, Oftalmiatrik.
    Zarrinkoob, Laleh
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Wåhlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Birgander, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Blood flow of ophthalmic artery in healthy individuals determined by phase-contrast magnetic resonance imaging2013Inngår i: Investigative Ophthalmology and Visual Science, ISSN 0146-0404, Vol. 54, nr 4, 2738-2745 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    PURPOSE: Recent development of magnetic resonance imaging (MRI) offers new possibilities to assess ocular blood flow. This prospective study evaluates the feasibility of phase-contrast MRI (PCMRI) to measure flow rate in the ophthalmic artery (OA) and establish reference values in healthy young (HY) and elderly (HE) subjects.

    METHODS: Fifty HY subjects (28 females, 21-30 years of age) and 44 HE (23 females, 64-80 years of age) were scanned on a 3-Tesla MR system. The PCMRI sequence had a spatial resolution of 0.35 mm per pixel, with the measurement plan placed perpendicularly to the OA. Mean flow rate (Qmean), resistive index (RI), and arterial volume pulsatility of OA (ΔVmax) were measured from the flow rate curve. Accuracy of PCMRI measures was investigated using a vessel-phantom mimicking the diameter and the flow rate range of the human OA.

    RESULTS: Flow rate could be assessed in 97% of the OAs. Phantom investigations showed good agreement between the reference and PCMRI measurements with an error of <7%. No statistical difference was found in Qmean between HY and HE individuals (HY: mean ± SD = 10.37 ± 4.45 mL/min; HE: 10.81 ± 5.15 mL/min, P = 0.655). The mean of ΔVmax (HY: 18.70 ± 7.24 μL; HE: 26.27 ± 12.59 μL, P < 0.001) and RI (HY: 0.62 ± 0.08; HE: 0.67 ± 0.1, P = 0.012) were significantly different between HY and HE.

    CONCLUSIONS: This study demonstrated that the flow rate of OA can be quantified using PCMRI. There was an age difference in the pulsatility parameters; however, the mean flow rate appeared independent of age. The primary difference in flow curves between HE and HY was in the relaxation phase of the systolic peak.

  • 31.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Israelsson, Hanna
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Neurologi.
    Wåhlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Birgander, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Neurologi.
    Brain ventricular size in healthy elderly: comparison between evans index and volume measurement.2010Inngår i: Neurosurgery, ISSN 0148-396X, E-ISSN 1524-4040, Vol. 67, nr 1, 94-99 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: A precise definition of ventricular enlargement is important in the diagnosis of hydrocephalus as well as in assessing central atrophy. The Evans index (EI), a linear ratio between the maximal frontal horn width and the cranium diameter, has been extensively used as an indirect marker of ventricular volume (VV). With modern imaging techniques, brain volume can be directly measured. OBJECTIVE: To determine reference values of intracranial volumes in healthy elderly individuals and to correlate volumes with the EI. METHODS: Magnetic resonance imaging (3 T) was performed in 46 healthy white elderly subjects (mean age +/- standard deviation, 71 +/- 6 years) and in 20 patients (74 +/- 7 years) with large ventricles according to visual inspection. VV, relative VV (RVV), and EI were assessed. Ventricular dilation was defined using VV and EI by a value above the 95th percentile range for healthy elderly individuals. RESULTS: In healthy elderly subjects, we found VV = 37 +/- 18 mL, RVV = 2.47 +/- 1.17%, and EI = 0.281 +/- 0.027. Including the patients, there was a strong correlation between EI and VV (R = 0.94) as well as between EI and RVV (R = 0.95). However, because of a wide 95% prediction interval (VV: +/-45 mL; RVV: +/- 2.54%), EI did not give a sufficiently good estimate of VV and RVV. CONCLUSION: VV (or RVV) and the EI reflect different properties. The exclusive use of EI in clinical studies as a marker of enlarged ventricles should be questioned. We suggest that the definition of dilated ventricles in white elderly individuals be defined as VV >77 mL or RVV >4.96 %. Future studies should compare intracranial volumes with clinical characteristics and prognosis.

  • 32.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Lindqvist, Tomas
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Wåhlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Petterson, E
    Warntjes, JBM
    Birgander, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Evaluation of automatic measurement of the intracranial volume based on quantitative MR imaging2012Inngår i: American Journal of Neuroradiology, ISSN 0195-6108, E-ISSN 1936-959X, Vol. 33, nr 10, 1951-1956 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND AND PURPOSE: Brain size is commonly described in relation to ICV, whereby accurate assessment of this quantity is fundamental. Recently, an optimized MR sequence (QRAPMASTER) was developed for simultaneous quantification of T1, T2, and proton density. ICV can be measured automatically within minutes from QRAPMASTER outputs and a dedicated software, SyMRI. Automatic estimations of ICV were evaluated against the manual segmentation.

    MATERIALS AND METHODS: In 19 healthy subjects, manual segmentation of ICV was performed by 2 neuroradiologists (Obs1, Obs2) by using QBrain software and conventional T2-weighted images. The automatic segmentation from the QRAPMASTER output was performed by using SyMRI. Manual corrections of the automatic segmentation were performed (corrected-automatic) by Obs1 and Obs2, who were blinded from each other. Finally, the repeatability of the automatic method was evaluated in 6 additional healthy subjects, each having 6 repeated QRAPMASTER scans. The time required to measure ICV was recorded.

    RESULTS: No significant difference was found between reference and automatic (and corrected-automatic) ICV (P > .25). The mean difference between the reference and automatic measurement was -4.84 ± 19.57 mL (or 0.31 ± 1.35%). Mean differences between the reference and the corrected-automatic measurements were -0.47 ± 17.95 mL (-0.01 ± 1.24%) and -1.26 ± 17.68 mL (-0.06 ± 1.22%) for Obs1 and Obs2, respectively. The repeatability errors of the automatic and the corrected-automatic method were <1%. The automatic method required 1 minute 11 seconds (SD = 12 seconds) of processing. Adding manual corrections required another 1 minute 32 seconds (SD = 38 seconds).

    CONCLUSIONS: Automatic and corrected-automatic quantification of ICV showed good agreement with the reference method. SyMRI software provided a fast and reproducible measure of ICV.

  • 33.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Petr, J.
    Wahlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Wirestam, R.
    Zarrinkoob, Laleh
    Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Partial Volume Correction of Cerebral Perfusion Estimates Obtained by Arterial Spin Labeling2015Inngår i: 16th Nordic-Baltic Conference on Biomedical Engineering: 16. NBC & 10. MTD 2014 joint conferences. October 14-16, 2014, Gothenburg, Sweden, 2015, Vol. 48, 17-19 s.Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Arterial Spin labeling (ASL) is a fully non-invasive MRI method capable to quantify cerebral perfusion. However, gray (GM) and white matter (WM) ASL perfusions are difficult to assess separately due to limited spatial resolution increasing the partial volume effects (PVE). In the present study, ASL PVE correction was implemented based on a regression algorithm in 22 healthy young men. PVE corrected perfusion of GM and WM were compared to previous studies. PVE-corrected GM perfusion was in agreement with literature values. In general, WM perfusion was higher despite the use of PVE correction.

  • 34.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Wåhlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Birgander, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Diagnostisk radiologi.
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    MR imaging of brain volumes: evaluation of a fully automatic software2011Inngår i: American Journal of Neuroradiology, ISSN 0195-6108, E-ISSN 1936-959X, Vol. 32, nr 2, 408-412 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND AND PURPOSE: Automatic assessment of brain volumes is needed in researchand clinical practice. Manual tracing is still the criterionstandard but is time-consuming. It is important to validatethe automatic tools to avoid the problems of clinical studiesdrawing conclusions on the basis of brain volumes estimatedwith methodologic errors. The objective of this study was toevaluate a new commercially available fully automatic softwarefor MR imaging of brain volume assessment. Automatic and expertmanual brain volumes were compared.

    MATERIALS AND METHODS: MR imaging (3T, axial T2 and FLAIR) was performed in 41 healthyelderly volunteers (mean age, 70 ± 6 years) and 20 patientswith hydrocephalus (mean age, 73 ± 7 years). The softwareQBrain was used to manually and automatically measure the followingbrain volumes: ICV, BTV, VV, and WMHV. The manual method hasbeen previously validated and was used as the reference. Agreementbetween the manual and automatic methods was evaluated by usinglinear regression and Bland-Altman plots.

    RESULTS: There were significant differences between the automatic andmanual methods regarding all volumes. The mean differences wereICV = 49 ± 93 mL (mean ± 2SD, n = 61), BTV = 11± 70 mL, VV = –6 ± 10 mL, and WMHV = 2.4± 9 mL. The automatic calculations of brain volumes tookapproximately 2 minutes per investigation.

    CONCLUSIONS: The automatic tool is promising and provides rapid assessmentof brain volumes. However, the software needs improvement beforeit is incorporated into research or daily use. Manual segmentationremains the reference method.

  • 35.
    Ambarki, Khalid
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF).
    Wåhlin, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper. Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Zarrinkoob, Laleh
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Wirestam, R.
    Petr, J.
    Malm, Jan
    Umeå universitet, Medicinska fakulteten, Institutionen för farmakologi och klinisk neurovetenskap, Klinisk neurovetenskap.
    Eklund, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper. Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Centrum för medicinsk teknik och fysik (CMTF). Umeå universitet, Medicinska fakulteten, Umeå centrum för funktionell hjärnavbildning (UFBI).
    Accuracy of Parenchymal Cerebral Blood Flow Measurements Using Pseudocontinuous Arterial Spin-Labeling in Healthy Volunteers2015Inngår i: American Journal of Neuroradiology, ISSN 0195-6108, E-ISSN 1936-959X, Vol. 36, nr 10, 1816-1821 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND AND PURPOSE: The arterial spin-labeling method for CBF assessment is widely available, but its accuracy is not fully established. We investigated the accuracy of a whole-brain arterial spin-labeling technique for assessing the mean parenchymal CBF and the effect of aging in healthy volunteers. Phase-contrast MR imaging was used as the reference method. MATERIALS AND METHODS: Ninety-two healthy volunteers were included: 49 young (age range, 20-30 years) and 43 elderly (age range, 65-80 years). Arterial spin-labeling parenchymal CBF values were averaged over the whole brain to quantify the mean pCBF(ASL) value. Total. CBF was assessed with phase-contrast MR imaging as the sum of flows in the internal carotid and vertebral arteries, and subsequent division by brain volume returned the pCBF(PCMRI) value. Accuracy was considered as good as that of the reference method if the systematic difference was less than 5 mL/min/100 g of brain tissue and if the 95% confidence intervals were equal to or better than +/- 10 mL/min/100 g. RESULTS: pCBF(ASL) correlated to pCBF(PCMRI) (r = 0.73; P < .001). Significant differences were observed between the pCBF(ASL) and pCBF(PCMRI) values in the young (P = .001) and the elderly (P < .001) volunteers. The systematic differences (mean 2 standard deviations) were -4 +/- 14 mL/min/100 g in the young subjects and 6 +/- 12 mL/min/100 g in the elderly subjects. Young subjects showed higher values than the elderly subjects for pCBF(PCMRI) (young, 57 +/- 8 mL/min/100 g; elderly, 54 +/- 7 mL/min/100 g; P = .05) and pCBF(ASL) (young, 61 +/- 10 mL/min/100 g; elderly, 48 +/- 10 mL/min/100 g; P < .001). CONCLUSIONS: The limits of agreement were too wide for the arterial spin-labeling method to be considered satisfactorily accurate, whereas the systematic overestimation in the young subjects and underestimation in the elderly subjects were close to acceptable. The age-related decrease in parenchymal CBF was augmented in arterial spin-labeling compared with phase-contrast MR imaging.

  • 36. Amirian, E. Susan
    et al.
    Armstrong, Georgina N.
    Zhou, Renke
    Lau, Ching C.
    Claus, Elizabeth B.
    Barnholtz-Sloan, Jill S.
    Il'yasova, Dora
    Schildkraut, Joellen
    Ali-Osman, Francis
    Sadetzki, Siegal
    Johansen, Christoffer
    Houlston, Richard S.
    Jenkins, Robert B.
    Lachance, Daniel
    Olson, Sara H.
    Bernstein, Jonine L.
    Merrell, Ryan T.
    Wrensch, Margaret R.
    Davis, Faith G.
    Lai, Rose
    Shete, Sanjay
    Amos, Christopher I.
    Scheurer, Michael E.
    Aldape, Kenneth
    Alafuzoff, Irina
    Brännström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap.
    Broholm, Helle
    Collins, Peter
    Giannini, Caterina
    Rosenblum, Marc
    Tihan, Tarik
    Melin, Beatrice S.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    Bondy, Melissa L.
    The Glioma International Case-Control Study: A Report From the Genetic Epidemiology of Glioma International Consortium2016Inngår i: American Journal of Epidemiology, ISSN 0002-9262, E-ISSN 1476-6256, Vol. 183, nr 2, 85-91 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Decades of research have established only a few etiological factors for glioma, which is a rare and highly fatal brain cancer. Common methodological challenges among glioma studies include small sample sizes, heterogeneity of tumor subtypes, and retrospective exposure assessment. Here, we briefly describe the Glioma International Case-Control (GICC) Study (recruitment, 2010-2013), a study being conducted by the Genetic Epidemiology of Glioma International Consortium that integrates data from multiple data collection sites, uses a common protocol and questionnaire, and includes biospecimen collection. To our knowledge, the GICC Study is the largest glioma study to date that includes collection of blood samples, which will allow for genetic analysis and interrogation of gene-environment interactions.

  • 37. Amirian, E. Susan
    et al.
    Armstrong, Georgina
    Zhou, Renke
    Wrensch, Margaret
    Olson, Sara
    Scheurer, Michael
    Il'yasova, Dora
    Lachance, Daniel
    Lau, Ching
    Claus, Elizabeth
    Barnholtz-Sloan, Jill
    Schildkraut, Joellen
    Ali-Osman, Francis
    Sadetzki, Siegal
    Johansen, Christoffer
    Houlston, Richard
    Jenkins, Robert
    Bernstein, Jonine
    Merrell, Ryan
    Davis, Faith
    Lai, Rose
    Shete, Sanjay
    Amos, Christopher
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Bondy, Melissa
    DEMOGRAPHICS AND LIFESTYLE FACTORS IN GLIOMA RISK: A REPORT FROM THE GLIOMA INTERNATIONAL CASE-CONTROL STUDY2016Inngår i: Neuro-Oncology, ISSN 1522-8517, E-ISSN 1523-5866, Vol. 18, 57-58 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 38. Amirian, E. Susan
    et al.
    Scheurer, Michael E.
    Wrensch, Margaret
    Olson, Sara H.
    Lai, Rose
    Lachance, Daniel
    Armstrong, Georgina
    Zhou, Renke
    Wiemels, Joseph
    Lau, Ching
    Claus, Elizabeth
    Barnholtz-Sloan, Jill
    Il'yasova, Dora
    Schildkraut, Joellen
    Houlston, Richard
    Shete, Sanjay
    Bernstein, Jonine
    Jenkins, Robert
    Davis, Faith
    Merrell, Ryan
    Johansen, Christoffer
    Sadetzki, Siegal
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Bondy, Melissa
    ATOPIC CONDITIONS, ANTIHISTAMINE USE, AND GLIOMA RISK: PRELIMINARY RESULTS FROM THE GLIOMA INTERNATIONAL CASE-CONTROL STUDY2013Inngår i: Neuro-Oncology, ISSN 1522-8517, E-ISSN 1523-5866, Vol. 15, nr Supplement: 3, 32-32 s.Artikkel i tidsskrift (Annet vitenskapelig)
  • 39. Amirian, E. Susan
    et al.
    Scheurer, Michael E.
    Zhou, Renke
    Wrensch, Margaret R.
    Armstrong, Georgina N.
    Lachance, Daniel
    Olson, Sara H.
    Lau, Ching C.
    Claus, Elizabeth B.
    Barnholtz-Sloan, Jill S.
    Il'yasova, Dora
    Schildkraut, Joellen
    Ali-Osman, Francis
    Sadetzki, Siegal
    Jenkins, Robert B.
    Bernstein, Jonine L.
    Merrell, Ryan T.
    Davis, Faith G.
    Lai, Rose
    Shete, Sanjay
    Amos, Christopher I.
    Melin, Beatrice S.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Bondy, Melissa L.
    History of chickenpox in glioma risk: a report from the glioma international case-control study (GICC)2016Inngår i: Cancer Medicine, ISSN 2045-7634, E-ISSN 2045-7634, Vol. 5, nr 6, 1352-1358 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Varicella zoster virus (VZV) is a neurotropic alpha-herpesvirus that causes chickenpox and establishes life-long latency in the cranial nerve and dorsal root ganglia of the host. To date, VZV is the only virus consistently reported to have an inverse association with glioma. The Glioma International Case-Control Study (GICC) is a large, multisite consortium with data on 4533 cases and 4171 controls collected across five countries. Here, we utilized the GICC data to confirm the previously reported associations between history of chickenpox and glioma risk in one of the largest studies to date on this topic. Using two-stage random-effects restricted maximum likelihood modeling, we found that a positive history of chickenpox was associated with a 21% lower glioma risk, adjusting for age and sex (95% confidence intervals (CI): 0.65-0.96). Furthermore, the protective effect of chickenpox was stronger for high-grade gliomas. Our study provides additional evidence that the observed protective effect of chickenpox against glioma is unlikely to be coincidental. Future studies, including meta-analyses of the literature and investigations of the potential biological mechanism, are warranted.

  • 40. Amirian, E. Susan
    et al.
    Zhou, Renke
    Wrensch, Margaret R.
    Olson, Sara H.
    Scheurer, Michael E.
    Il'yasova, Dora
    Lachance, Daniel
    Armstrong, Georgina N.
    McCoy, Lucie S.
    Lau, Ching C.
    Claus, Elizabeth B.
    Barnholtz-Sloan, Jill S.
    Schildkraut, Joellen
    Ali-Osman, Francis
    Sadetzki, Siegal
    Johansen, Christoffer
    Houlston, Richard S.
    Jenkins, Robert B.
    Bernstein, Jonine L.
    Merrell, Ryan T.
    Davis, Faith G.
    Lai, Rose
    Shete, Sanjay
    Amos, Christopher I.
    Melin, Beatrice S.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Bondy, Melissa L.
    Approaching a Scientific Consensus on the Association between Allergies and Glioma Risk: a report from the Glioma International Case-Control Study2016Inngår i: Cancer Epidemiology, Biomarkers and Prevention, ISSN 1055-9965, E-ISSN 1538-7755, Vol. 25, nr 2, 282-290 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Several previous studies have found inverse associations between glioma susceptibility and a history of allergies or other atopic conditions. Some evidence indicates that respiratory allergies are likely to be particularly relevant with regard to glioma risk. Using data from the Glioma International Case-Control Study (GICC), we examined the effects of respiratory allergies and other atopic conditions on glioma risk. Methods: The GICC contains detailed information on history of atopic conditions for 4,533 cases and 4,171 controls, recruited from 14 study sites across five countries. Using two-stage random-effects restricted maximum likelihood modeling to calculate meta-analysis ORs, we examined the associations between glioma and allergy status, respiratory allergy status, asthma, and eczema. Results: Having a history of respiratory allergies was associated with an approximately 30% lower glioma risk, compared with not having respiratory allergies (mOR, 0.72; 95% confidence interval, 0.58-0.90). This association was similar when restricting to high-grade glioma cases. Asthma and eczema were also significantly protective against glioma. Conclusion: A substantial amount of data on the inverse association between atopic conditions and glioma has accumulated, and findings from the GICC study further strengthen the existing evidence that the relationship between atopy and glioma is unlikely to be coincidental. Impact: As the literature approaches a consensus on the impact of allergies in glioma risk, future research can begin to shift focus to what the underlying biologic mechanism behind this association may be, which could, in turn, yield new opportunities for immunotherapy or cancer prevention. (C) 2016 AACR.

  • 41. Amundadottir, Laufey T
    et al.
    Sulem, Patrick
    Gudmundsson, Julius
    Helgasson, Agnar
    Baker, Adam
    Agnarsson, Bjarni A
    Sigurdsson, Asgeir
    Benediktsdottir, Kristrun R
    Cazier, Jean-Baptiste
    Sainz, Jesus
    Jakobsdottir, Margret
    Kostic, Jelena
    Magnusdottir, Droplaug N
    Gosh, Shyamali
    Agnarsson, Kari
    Birgisdottir, Birgitta
    Le Roux, Louise
    Olafsdottir, Adalheidur
    Blondal, Thorarinn
    Andresdottir, Margret
    Gretarsdottir, Olafia Svandis
    Bergthorsson, Jon T
    Gudbjartsson, Daniel
    Gylfason, Arnaldur
    Thorleifsson, Gudmar
    Manolescu, Andrei
    Kristjansson, Kristleifur
    Geirsson, Gudmundur
    Isaksson, Helgi
    Douglas, Julie
    Johansson, Jan-Erik
    Bälter, Katarina
    Wiklund, Fredrik
    Montie, James E
    Yu, Xiaoying
    Suarez, Brian K
    Ober, Carole
    Cooney, Kathleen A
    Grönberg, Henrik
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper.
    Catalona, William J
    Einarsson, Gudmundur V
    Barkardottir, Rosa B
    Gulcher, Jeffrey R
    Kong, Augustine
    Thorsteinsdottir, Unnur
    Stefansson, Kari
    A common variant associated with prostate cancer in European and African populations2006Inngår i: Nature Genetics, Vol. 38, nr 6, 652-658 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 42. Anantharaman, Devasena
    et al.
    Gheit, Tarik
    Waterboer, Tim
    Halec, Gordana
    Carreira, Christine
    Abedi-Ardekani, Behnoush
    McKay-Chopin, Sandrine
    Zaridze, David
    Mukeria, Anush
    Szeszenia-Dabrowska, Neonila
    Lissowska, Jolanta
    Mates, Dana
    Janout, Vladimir
    Foretova, Lenka
    Bencko, Vladimir
    Rudnai, Peter
    Fabianova, Eleonora
    Tjonneland, Anne
    Travis, Ruth C
    Boeing, Heiner
    Quiros, J Ramon
    Johansson, Mikael
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Krogh, Vittorio
    Bueno-de-Mesquita, H Bas
    Kotanidou, Anastasia
    Clavel-Chapelon, Francoise
    Weiderpass, Elisabete
    Johansson, Mattias
    Pawlita, Michael
    Scelo, Ghislaine
    Tommasino, Massimo
    Brennan, Paul
    No causal association identified for human papillomavirus infections in lung cancer2014Inngår i: Cancer Research, ISSN 0008-5472, E-ISSN 1538-7445, Vol. 74, nr 13, 3525-3534 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Human papillomavirus (HPV) infections have been implicated in lung carcinogenesis, but causal associations remain uncertain. We evaluated a potential causal role for HPV infections in lung cancer through an analysis involving serology, tumor DNA, RNA, and p16 protein expression. Association between type-specific HPV antibodies and risk of lung cancer was examined among 3,083 cases and 4,328 controls in two case-control studies (retrospective) and one nested case-control study (prospective design). Three hundred and thirty-four available tumors were subjected to pathologic evaluation and subsequent HPV genotyping following stringent conditions to detect all high-risk and two low-risk HPV types. All HPV DNA-positive tumors were further tested for the expression of p16 protein and type-specific HPV mRNA. On the basis of the consistency of the results, although HPV11 and HPV31 E6 antibodies were associated with lung cancer risk in the retrospective study, no association was observed in the prospective design. Presence of type-specific antibodies correlated poorly with the presence of the corresponding HPV DNA in the tumor. Although nearly 10% of the lung tumors were positive for any HPV DNA (7% for HPV16 DNA), none expressed the viral oncogenes. No association was observed between HPV antibodies or DNA and lung cancer survival. In conclusion, we found no supportive evidence for the hypothesized causal association between HPV infections and lung cancer. (C) 2014 AACR.

  • 43. Ancelle-Park, R.
    et al.
    Armaroli, P.
    Ascunce, N.
    Bisanti, L.
    Bellisario, C.
    Broeders, M.
    Cogo, C.
    de Koning, H.
    Duffy, S. W.
    Frigerio, A.
    Giordano, L.
    Hofvind, S.
    Jonsson, Håkan
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Lynge, E.
    Massat, N.
    Miccinesi, G.
    Moss, S.
    Naldoni, C.
    Njor, S.
    Nyström, Lennarth
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Paap, E.
    Paci, E.
    Patnick, J.
    Ponti, A.
    Puliti, D.
    Segnan, N.
    Von Karsa, L.
    Tornberg, S.
    Zappa, M.
    Zorzi, M.
    Summary of the evidence of breast cancer service screening outcomes in Europe and first estimate of the benefit and harm balance sheet2012Inngår i: Journal of Medical Screening, ISSN 0969-1413, Vol. 19, 5-13 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objectives To construct a European 'balance sheet' of key outcomes of population-based mammographic breast cancer screening, to inform policy-makers, stakeholders and invited women. Methods From the studies reviewed, the primary benefit of screening, breast cancer mortality reduction, was compared with the main harms, over-diagnosis and false-positive screening results (FPRs). Results Pooled estimates of breast cancer mortality reduction among invited women were 25% in incidence-based mortality studies and 31% in case-control studies (38% and 48% among women actually screened). Estimates of over-diagnosis ranged from 1% to 10% of the expected incidence in the absence of screening. The combined estimate of over-diagnosis for screened women, from European studies correctly adjusted for lead time and underlying trend, was 6.5%. For women undergoing 10 biennial screening tests, the estimated cumulative risk of a FPR followed by non-invasive assessment was 17%, and 3% having an invasive assessment. For every 1000 women screened biennially from age 50-51 until age 68-69 and followed up to age 79, an estimated seven to nine lives are saved, four cases are over-diagnosed, 170 women have at least one recall followed by non-invasive assessment with a negative result and 30 women have at least one recall followed by invasive procedures yielding a negative result. Conclusions The chance of saving a woman's life by population-based mammographic screening of appropriate quality is greater than that of over-diagnosis. Service screening in Europe achieves a mortality benefit at least as great as the randomized controlled trials. These outcomes should be communicated to women offered service screening in Europe.

  • 44. Andersen, Niels S
    et al.
    Pedersen, Lone B
    Laurell, Anna
    Elonen, Erkki
    Kolstad, Arne
    Boesen, Anne Marie
    Pedersen, Lars M
    Lauritzsen, Grete F
    Ekanger, Roald
    Nilsson-Ehle, Herman
    Nordström, Marie
    Fredén, Susanne
    Jerkeman, Mats
    Eriksson, Mikael
    Väärt, Jaan
    Malmer, Beatrice
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi.
    Geisler, Christian H
    Pre-emptive treatment with rituximab of molecular relapse after autologous stem cell transplantation in mantle cell lymphoma.2009Inngår i: Journal of clinical oncology : official journal of the American Society of Clinical Oncology, ISSN 1527-7755, Vol. 27, nr 26, 4365-70 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    PURPOSE: Minimal residual disease (MRD) is predictive of clinical progression in mantle-cell lymphoma (MCL). According to the Nordic MCL-2 protocol we prospectively analyzed the efficacy of pre-emptive treatment using rituximab to MCL patients in molecular relapse after autologous stem cell transplantation (ASCT). PATIENTS AND MATERIALS: MCL patients enrolled onto the study, who had polymerase chain reaction (PCR) detectable molecular markers and underwent ASCT, were followed with serial PCR assessments of MRD in consecutive bone marrow and peripheral blood samples after ASCT. In case of molecular relapse with increasing MRD levels, patients were offered pre-emptive treatment with rituximab 375 mg/m(2) weekly for 4 weeks. RESULTS: Of 160 MCL patients enrolled, 145 underwent ASCT, of whom 78 had a molecular marker. Of these, 74 were in complete remission (CR) and four had progressive disease after ASCT. Of the CR patients, 36 underwent a molecular relapse up to 6 years (mean, 18.5 months) after ASCT. Ten patients did not receive pre-emptive treatment mainly due to a simultaneous molecular and clinical relapse, while 26 patients underwent pre-emptive treatment leading to reinduction of molecular remission in 92%. Median molecular and clinical relapse-free survival after pre-emptive treatment were 1.5 and 3.7 years, respectively. Of the 38 patients who remain in molecular remission for now for a median of 3.3 years (range, 0.4 to 6.6 years), 33 are still in clinical CR. CONCLUSION: Molecular relapse may occur many years after ASCT in MCL, and PCR based pre-emptive treatment using rituximab is feasible, reinduce molecular remission, and may prevent clinical relapse.

  • 45.
    Andersson, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Long-term side effects after treatment of Hodgkin's lymphoma2011Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Background Long-term side effects associated with the treatment of Hodgkin’s lymphoma (HL) have frequently been reported during the last decades. Studies have shown increased mortality in HL survivors. Following Hodgkin’s lymphoma, second malignancies (SM) and cardiovascular disease (CVD) are the most common causes of death in individuals treated for HL. This study investigates the incidence of side effects such as SM, CVD and infections in a cohort diagnosed with HL in Sweden between 1965 and 1995. In addition, this study identifies covariate risk factors for late side effects in order to develop strategies that prevent morbidity and mortality in HL survivors.

    Methods Using the Swedish Cancer Registry (SCR) at the National Board of Health and Welfare and the Multi-Generation Registry at Statistics (MGR) Sweden, we identified 6946 individuals diagnosed with HL between the years 1965 and 1995, and their first degree relatives (FDR) (n=17 858). In addition we identified the malignancies and inpatient care for CVD and infections for the HL cohort and their FDR. The standard incidence ratio (SIR) was calculated for the risk of SM, CVD and infections. For SM and CVD the risk also was stratified and calculated for family history of disease. The Swedish Hodgkin Intervention and Prevention study (SHIP), a prospective study, invited 702 individuals treated for HL at the age of 45 years or younger and who were treated in the region of Skåne, Uppsala or Umeå. The participants completed a questionnaire and were invited to an out-patient visit to an oncologist with clinical examination and blood tests. Any pathological findings were referred for further investigation.

    Results An increased risk for SM in HL long-term survivors was observed and seems to increase with the number of FDRs with cancer. There was also an increased risk for inpatient care due to congestive heart failure (CHF) and coronary artery disease (CAD). A family history of CHF and CAD further increased the risk for these diseases. The risk for inpatient care due to infections was increased and remained increased after 20 years or longer. The risk for infections was associated with splenectomy and hypothyroidism. Radiotherapy was an independent risk factor for cardiovascular disease in the cohort of the prospective study.

    ConclusionLong-term survivors from HL have an increased risk for developing late side effects such as SM, CVD and infections. Since many HL patients are young and the cure rate from the disease is high, it is of great importance to offer focused surveillance programs to selected individuals who are at high risk, e.g. individuals who received radiotherapy as part of their treatment and who have other known risk factors for cardiovascular disease such as hypertension, hypercholesterolemia, family history and smoking.

  • 46.
    Andersson, Anne
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Enblad, Gunilla
    Department of Oncology, Radiology and Clinical immunology, Section of Oncology, Uppsala University, Uppsala.
    Gustavsson, Anita
    Department of Oncology, Skåne University Hospital, Lund University, Lund .
    Erlanson, Martin
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Hagberg, Hans
    Department of Oncology, Radiology and Clinical immunology, Section of Oncology, Uppsala University, Uppsala .
    Molin, Daniel
    Department of Oncology, Radiology and Clinical immunology, Section of Oncology, Uppsala University, Uppsala .
    Tavelin, Björn
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Long term risk of infections in Hodgkin lymphoma long-term survivors2011Inngår i: British Journal of Haematology, ISSN 0007-1048, E-ISSN 1365-2141, Vol. 154, nr 5, 661-663 s.Artikkel i tidsskrift (Fagfellevurdert)
  • 47.
    Andersson, Anne
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Enblad, Gunilla
    Uppsala universitet.
    Gustavsson, Anita
    Lunds universitet.
    Erlanson, Martin
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Hagberg, Hans
    Uppsala universitet.
    Molin, Daniel
    Uppsala universitet.
    Tavelin, Björn
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Näslund, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Melin, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Cardiovascular side effects following treatment of Hodgkin’s lymphoma: comorbidity factors and a strategy for interventionManuskript (preprint) (Annet vitenskapelig)
  • 48.
    Andersson, Anne
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Enblad, Gunilla
    Tavelin, Björn
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Björkholm, Magnus
    Linderoth, Johan
    Lagerlöf, I
    Merup, Mats
    Sender, Mark
    Malmer, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Family history of cancer as a risk factor for second malignancies after Hodgkin's lymphoma2008Inngår i: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 98, nr 5, 1001-1005 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This study estimated the risk of second primary malignancies after Hodgkin's lymphoma (HL) in relation to family history of cancer, age at diagnosis and latency, among 6946 patients treated for HL in Sweden in 1965–1995 identified through the Swedish Cancer Register (SCR). First-degree relatives (FDRs) to the HL patients and their malignancies were then ascertained together with their malignancies through the Multi-Generation Registry and SCR. The HL patient cohort was stratified on the number of FDRs with cancer, and standardised incidence ratios (SIRs) of developing SM were analysed. In the HL cohort, 781 SM were observed 1 year or longer after HL diagnosis. The risk for developing SM increased with the number of FDRs with cancer, SIRs being 2.26, 3.01, and 3.45 with 0, 1, or ≥2 FDRs with cancer, respectively. Hodgkin's lymphoma long-term survivors treated at a young age with a family history of cancer carry an increased risk for developing SM and may represent a subgroup where standardised screening for the most common cancer sites could be offered in a stringent surveillance programme.

  • 49.
    Andersson, Anne
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Näslund, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Tavelin, Björn
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Enblad, Gunilla
    Gustavsson, Anita
    Malmer, Beatrice
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Onkologi.
    Long-term risk of cardiovascular disease in Hodgkin lymphoma survivors: retrospective cohort analyses and a concept for prospective intervention2009Inngår i: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 124, nr 8, 1914-1917 s.Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Previous studies have shown increased cardiovascular mortality as late side effects in Hodgkin lymphoma (HL) patients. This study identifies stratifying risk factors for surveillance and defines concepts for a clinical feasible and noninvasive prospective protocol for intervention of cardiovascular side effects. HL patients diagnosed between 1965 and 1995 (n = 6.946) and their first-degree relatives (FDR) were identified through the Swedish Cancer Registry and the Swedish Multigeneration Registry. For the HL and FDR cohort, in-patient care for cardiovascular disease (CVD) was registered through the Hospital Discharge Registry, Sweden. Standard incidence ratios of developing CVD for the HL cohort were calculated. A markedly increased risk for in-patient care of CVD was observed in HL patients with HL diagnosed at age 40 years or younger and with more than 10 years follow-up. In the HL survivors, a family history of congestive heart failure (CHF) and coronary artery disease (CAD) increased the risk for these diseases. The Swedish Hodgkin Intervention and Prevention study started in 2007. In the pilot feasibility study for prospective intervention (47 patients), about 25% of the cases had side effects and laboratory abnormalities. These patients were referred to a cardiologist or general practitioner. In the prospective cohort, a positive family history for CHF or CAD could be a stratifying risk factor when setting up a surveillance model. The prospective on-going study presents an intervention model that screens and treats for comorbidity factors. This article also presents an overview of the study concept.

  • 50.
    Andersson, Britta
    et al.
    Umeå universitet, Medicinsk fakultet, Medicinsk biovetenskap, Klinisk kemi. Klinisk kemi.
    Behnam Motlagh, Parviz
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi. Onkologi.
    Henriksson, Roger
    Umeå universitet, Medicinsk fakultet, Strålningsvetenskaper, Onkologi. Onkologi.
    Grankvist, Kjell
    Umeå universitet, Medicinsk fakultet, Medicinsk biovetenskap, Klinisk kemi. Klinisk kemi.
    Pharmacological modulation of lung cancer cells for potassium ion depletion2005Inngår i: Anticancer Research, ISSN 0250-7005, Vol. 25, nr 4, 2609-2616 s.Artikkel i tidsskrift (Fagfellevurdert)
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